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16.5.32 IPM Overheating (F22)
Malfunction Decision Conditions:
During operation of cooling and heating, when temperature 95°C is detected by the outdoor IPM temperature
sensor.
Malfunction Caused:
1 Faulty outdoor unit fan motor.
2 Faulty outdoor unit PCB (main).
Abnormality Judgment:
Continue 3 times in 30 minutes.
Is the outdoor unit fan
motor operating?
Yes
Check the outdoor unit
installation condition.
- Reinstall the outdoor unit
- Remove the obstacle(s)
Yes
Is there any improper heat
radiation?
No
Replace the outdoor unit
fan motor.
No
- Defect in IPM
- Replace the outdoor unit
PCB (main)
Troubleshooting:
For safety reason and to prevent component breakdown,
always switch off the power before remove and connect the component.
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